A parking slope control method, system and device for an electric vehicle

A technology of an electric vehicle and a control method, which is applied in the field of electric vehicle stagnation control and computer-readable storage medium, can solve the problem of the unevenness of the electric vehicle stagnation process, and achieve the effect of stable stop.

Active Publication Date: 2021-04-30
SHENZHEN V&T TECH
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  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a parking slope control method, system, device and computer-readable storage medium of an electric vehicle, aiming to solve the problem that the electric vehicle parking slope process is not stable in the traditional technical solution

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  • A parking slope control method, system and device for an electric vehicle
  • A parking slope control method, system and device for an electric vehicle
  • A parking slope control method, system and device for an electric vehicle

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] figure 1 It is a control principle block diagram of electric vehicle standing wave control in the prior art, and a closed-loop control is adopted to realize vehicle standing slope. Closed-loop control refers to a control relationship in which the controlled output returns to the controlled input in a certain way and exerts a control influence on the input. Vehicle parking refers to the vehicle parking on a sloped road. Slope control refers to controlling the vehicle to stop smoothly when the vehicle is parked on a sloped road. figure 1 The closed-loop control is adopted to realize the cont...

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Abstract

The invention belongs to the technical field of electric vehicles, and discloses a standing slope control method, system, device and computer-readable storage medium of an electric vehicle. The standing slope control method of an electric vehicle comprises: setting a target position of a motor rotor θ*; detect the current position θ of the motor rotor; output the angular deviation Δθ between the target position θ* and the current position θ; if the angular deviation Δθ is not equal to 0, adjust the motor based on the feedforward adjustment command The current position θ of the rotor is adjusted until the angle deviation Δθ is equal to 0; the feed-forward adjustment command is obtained based on the output of a preset acceleration feed-forward command and a preset speed feed-forward command. The invention can directly give the feed-forward adjustment command to the current loop and the speed loop, thereby greatly improving the command tracking effect, and can ensure that the vehicle can not only reduce the distance of slipping backwards, but also ensure the smooth running of the vehicle during the process of standing on the slope. stop.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a standing slope control method, system, device and computer-readable storage medium of electric vehicles. Background technique [0002] Most of the current buses use new energy electric vehicles, and in some cities with many mountain roads, bus stops are usually built on sloped roads. For this reason, drivers usually have to step on the brakes when parking on the sloped platforms Pulling the handbrake, and pulling the handbrake is usually achieved by controlling the mechanical structure. For this reason, a bus will pull the handbrake many times a day, which will affect the life of the mechanical structure. The solution to this problem in the industry is generally to use closed-loop proportional-integral regulation to achieve standing slope control. [0003] This control method has a relatively serious shortcoming, that is, the closed-loop proportional-inte...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20H02P3/18H02P23/14
CPCY02T10/64Y02T10/72
Inventor 李荣坤翟国建邱文渊徐学海
Owner SHENZHEN V&T TECH
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